Compound of organic colors with fatty acids and process of making same.



UNITED sTA Es PATENT oEEIoE.

BENNO HOMOLKA, OF FRANKFORT-ON-THE-MAIN, AND JOSEF ERBEl-Z, OF

HOCHST-ON-THE-MAIN, GERMANY, ASSIGNORS TO FARBW'ERKE VORML MEISTER LUUIUS & BRUNING, OF HOCHST-ON-THE-MAIN, GERMANY, A

CORPORATION OF GERMANY.

COMPOUND OF ORGANIC COLORS WITH FATTY ACIDS AND PROCESS OF MAKING SAME.

Specification of. Letters Patent.

Patented Dec. 25, 1906.

Application filed April 12,1906. Serial No. 311,206

Ph. 1)., chemist, residing at Frankfort-on-the Main, and JosEF ERBER, Ph. 1)., chemist, residing at Ilochst-on-the-Main, Germany, citizens of the Empire of Germany, have invented certain new and useful improvements in the Manufacture of Products Soluble in Water, Fats, and Oils from the Sebates and Oleates of Organic Color Bases, of which the following is a specification.

The sebates and oleates of organic color bases are known to be insoluble in water. They are obtained by double decomposition of the color bases with sebacic or oleic acids or by the reaction of the different dyestufi's as salts soluble in water with alkali sebates or oleatesfor instance, with soap. They have been in use for a long time for coloring fats and oils. Modern coloringindustry, however, requires the sebates and oleates of organic color bases to be not only soluble in fats and oils, but also in water. We have found that products having such propertiesmay be obtained by means of the alkali salts of benzylanilin sulfonic acid or its homologues. If, for instance, the sebate or oleatc of a dyestuir' insoluble in water be introduced while heating into a consideralily-concentrated solution of alkali-be11zyl-anilin sulfonate of about thirty per cent. strength, it dissolves in great (uantities. further di uted with water as desired and is also homogeneously miscible with fats, oils, and varnishes, but is insoluble in ether. Owing to this behaviorit is particularly suited for certain coloring purposesfor instance, to shade oll' printing-mks.

Exam )le 1: 'lwenty-three parts of the hydrochlorid of methyl-violet 6 B are stirred together with fifteen parts of soft soap, whereby the sebate insoluble in water is obtained. There is then added while stirring and heating a concentrated aqueous solution of ten parts of alkali-benzyl-anilin sulfonate (C ll (,l'l -i\ ll-C l-1,SO Na) or of 10.5 parts of alkali-benzyl-toluidin ((J,,H ()lI N ll 1I -SO Na) or of eleven parts of alkali-benzyl-xylidin sulfonatc (C li CIl -N H(J H --SO.,N a) until the product obtained becomes soluble This solution may be in water. The benzyl-anilin suli'onates are calculated as dry substance.

Example II: 23.5 parts of -victoria-blue B base are fused at water-bath temperature, while continuously stirring, with fifteen parts of a sebacic or oleic acid, whereupon a concentrated aqueous solution of twelve parts of the salts mentioned in Example I is gradually added until the product obtained is soluble in water and in oil.

Example 111: Twenty-two parts of rhodamin B base are stirred while heating to form a magma with ten to twelve parts of benzyl-anilin sulfonic acid or of benzyl-toluidin sulfonic acid or of benzyl-xylidin sulfonic acid and Water, whereupon fifteen parts of alkali sebate or oleate are added until the product becomes soluble in water and in oil. From these examples it is apparent that it is immaterial in what condition or order the components are allowed to act upon each other. The process is the same if other dyestuffs or color bases be used. The products thus obtained when mixed with varnishes suited for printing purposes may be at once applied to shade off printing-inks.

Having thus described our invention, we claim as new and desire to secure by Letters Patentl. The process herein described for the manufacture of products soluble in water, fats and oils from the sebates and oleates of organic color bases, which consists in combining the sebates and oleates of or anic color bases with the alkali salts of sul onic acids of aromatic benzyl bases.

2. As a new product, the mixture of a dyestuil as a salt insoluble in water with the alkali salt of the sulfonic acid of an aromatic benzyl base, said product being soluble in water, benzene, fats and oils, but insoluble in ether, and specially applicable to shade o'li' printing-inks' In testimony that we claim the foregoing as our invention we have signed our names in presence of two subscribing witnesses.

BENNO HOMOLKA. JOSEF ERBER.

Witnesses: I

JEAN GRUND, CARL GRUND. 

